This was a major breakthrough in geology because it meant that sedimentary strata in diverse parts of a country or area could be correlated as belonging to the same formation which means they were formed at the same time historically so helped to put them in the correct sequence. If these strata contained valuable minerals like coal then it could aid in the search for coal. This helped William 'Strata' Smith in England to create his first geological map in the world of a whole country.
The answer u r looking for is- thylakoids. ;)
Answer: 6 is the wavelength has decreased.
Explanation:
It is an advantage due to the fact you do not have to think about it. therefore while sleeping you still breathe and you do not have to be conscious
